Regenerative coke oven



April 2, 1929. T 4 1,707,537

REGENERATIVE coma ovsn Filed April 25,1925 2 Sheets-Sheet 2 All? V INVENTOR ATTOBN Y heat unit and in the best embodiment of the invention the direction of flow is so arranged that the flow takes place in opposite directions in the upper cross-over conduits of two neighboring heating units. By this means one obtains the great advantage that the direction of flow is the same in six adjacent regenerators. In other words, an opposite direction of flow between adjacent air and waste-heat regenerators occurs only at each fifth heating wall. I

In Figure 1, the oven is shown as heated with weak gas and strong gas. If it is desired to heat with strong gas alone. either all of the regenerators may be used for preheating air or some of the regenerators may be omitted, each of the remaining regenerators supplying preheated air to the fines of two adjacent heating walls.

Turning now to Figure 2, the direction of flow of air, burning gases and waste heat, is indicated by arrows. Oven chambers 15, are provided with heating walls 16. In each heating wall one or more systems of heating fines are provided, the burning gases flowing in' the same direction in the fines of any one heating'system. The fine systems ot the heating walls are numbered respectively, 17, '18, 19. 20, 21, 22, 23. 24. Each tine system comprises a plurality of fines extending side by side along the heating wall and the fines of the respective systems communicate at the tops or ends by means of horizontal channels 25, 2G, 27, 28, 29, 30, 31, 32. Separate cross-over conduits 33, 34, 35, 36, communicate with alternate channels and thus separately connect alternate systems of tines, thatis to say, the like fine systems of alternate heating walls are so connected. Conduit 33, connects tlue system 17, with fine system 19. conduit 34, connects flue system 18, with fiue'system 20, conduit 35, connects flue system 21, with line system 23, and conduit 36 connects flue system 22, with fine system 24.

In Figure 2, strong gas is supplied to each flue of a fine system by means of pipes 37, 38, 39, 40, 41, 42, 13, 44, there being a series of pipes for a flue system, a separate pipe for each fine-of the system. These pipes run from the underburner passageways 4:5, undcrneath the oven, the oven being supported above the ground upon posts 46. Preheated air is supplied to the flue systems by regenerators 47,;which extend below the oven chamber soles in the direction of. the oven chambers, and communicate with the flue systems by' passageways 48, there being one air passageway for each flue of a system.

It will be observed that in the form of the invention illustrated in Figure 2, in each four regenerators arranged side by side in a group, the direction of flow of waste heat or of preheated air is in the same direction, by means of which the considerable advantage is realized of reduction of leakage between regenerators, such as would occur if the direction of flow in adjacent regenerators were in opposite directions.

In the form of the invention illustrated in Figure 3, the coking chambers 49, the heating flue systems 50, 51, 52, 53, 54, 55, 56, 57, ot the heating walls 58. and the crossover conduits 59, 60, 61., 62, are constructed and arranged as in Figure '1, but the oven may also be heated by weak gas. This preheated weak gas is supplied by rcgenerators 63, weak gas being supplied to the regenerators by pipes 64. Prchcatcd air is then supplied by regenerators 65. Strong gas may also be used instead of weak gas by means of pipes 100, there being one strong gas pipe for each heating flue of a flue system. When strong gas is used preheated air may be supplied by regenerators (i3 and regenerattn's 65. Air is supplied to regenerators (i5, and 63, thru conduits 66. running underneath the regenerators to the fronts of the oven. The respective regenerators are connected to each of the heating flucs by mssagtwvays G7, (38. In the form of the invention illustrated in Figure 3, the flow of waste heat is in the same direction in eight of the neighboring regenerators and the flow of weak gas and air is likt-Wlhfl in a. common direction in another eight neighboring regenerators. Iicakage between regenerators of a group in which the direction of flow is the same, is accordingly avoided.

It will be understood that the drawings show a one period operation of the oven and that upon reversal of the oven, the flow of weak gas, and air and-the waste heat in Figure 3, is reversed. The flow will then take place indirections indicated by reversing the arrows in-this figure. The ovens of" Figures 1- and 2 may, likewise, be reversed.

Having thus described the. invention and its operation, it will be understood "that changes may be made in construction and arrangement ot' the tines without departing from the principle of the invention.

vVhat I claim is:

1. A regenerative coke oven which may be heated as desired by strong gas or weak gas, provided with a series of alternate horizontally elongated oven chambers and heating walls theretor, arranged side by side, each of said heating walls having vertical heating tlues, cross-over conduits, each connecting together the tops of fines of alternate heating walls only, into independent flue systems, regenerators extending longitudinally of the oven chambers and connected to the flue systems for preheating air and for receiving waste heat therefrom, and means for supplying strong gas to the fines of the flue systems.

2. A regenerative coke ovenwhieh may be heated as desired by strong gas or weak gas,

provided with a series of alternate horizontally elongated oven chambers and heating walls therefor, each of said heating walls having vertical heating flues, cross-over conduits, each connecting together the tops of flues of alternate heating walls only, into independent flue s stems, and regenerators extending longitu inally of the oven chambers and connected to the flue systems for preheating air and gas for and receiving waste heat from said flue systems. 7

3. A regenerative coke oven which may be heated as desired by strong gas or weak gas, provided with a series of alternate horizontally elongated oven chambers and heating walls therefor, each of said heating walls having vertical heating flues, cross-over conduits, each connecting together the tops of flues of alternate heating walls only, into independent flue systems, regenerators ex-'' tending longitudinally of the oven chambers and connected to the flue systems for preheating air and gas for and receiving-waste heat from said flue systems, and separate means for supplying strong gas to each of the flues of the flue systems.

4. A regenerative coke oven which may be heated as desired by strong gas or weak gas, provided with a series of alternate horizontally elongated oven chambers and heating walls therefor, each of said. heating walls having vertical heating flues, regenerators for air and gas connected to said heatingfiues and separate cross-over conduits, passing over the tops of the coking chambers, which directly connect heating flues of one wall with flues of an alternate wall only of the series, so that two even-nun'ibered heating walls and two odd-numbered heating walls are each connected into a pair, said pairs and the regenerators connected thereto being connected into a single heating unit.

5. A regenerative coke oven which may be heated as desired by strong gas or weak gas, provided with a series of alternate horizontally elongated oven chambers and heating walls therefor, each of said heating walls having vertical heating flues, separate crossover conduits directly connecting flues of alternate heating walls only, more than two regenerators extending longitudinally of and below the oven chambers for preheating air, separate means for supplying gas to each of the flues and means .for connecting the re generators with flues of successive heating walls, so that the flow in more. than two adjacent regenerators may be in the same di- 7 rection simultaneously.

6. A regenerative coke oven which may be heated as desired by strong gas or weak gas, provided with a series of alternate horizon tally elongated oven chambers and heating walls therefor, each of'said walls having vertical heating flues, separate cross-over conduits directly connecting the tops of flues of alternate heating walls only, a plurality of regenerators extending longitudinally of and below the oven chambers and connected to the heating flues and means for connecting the regenerators with flues of successive heating walls, so that the flow in more than two adjacent regenerators may be in Y the same direction simultaneously.

7. A regenerative coke oven provided with a series of alternate horizontally elongated oven chambers and heating walls therefor, each of said walls having Vertical heating flues, separate cross-over conduits connecting the tops of flues of alternate heating walls only into independent heating flue systems, means forsupporting the oven above the ground, the ovens having accessible passage-ways underneath, regenerators for the ovenarranged in the direction of the oven chambers and between the soles of the oven-chambers and the ceilings of the accessible passageways, and vertical pipes for'.

supplying strong gas to the flues of the flue systems, said pipes extending from the passageways underneath the oven, to the. heating flues.

8. A regenerative coke oven provided with a series of alternate horizontally elongated oven chambers and heating walls therefor, each of said walls having vertical heating flues, separate cross-over conduits connecting the tops of flues of alternate heating walls only into independent heating flue systems, means for supporting the oven above the ground, the ovens having accessible passageways underneath, regenera'tors for preheating air and regenerators for preheating gas extending 1n the direction of the oven 7 and arranged between the soles of the oven chambers and the ceilings of the accessible passageways, and vertical pipes for supplying strong gas to the flues of. the flue systems, said pipes extending from the passageways underneath the oven to the heating flues.

9. A regenerative coke oven provided with a series of alternate horizontally elongated oven chambers and heating walls therefor, each of said walls having vertical heating flues, separate cross-over conduits directly connecting the tops of fines of alternate heating walls only into independent heating flue systems, regenerators extending longitudinally of and below the oven chambers and connected to the flue systems, and separate means for supplying gas to each of the flues. 4

In witness whereof, I have signed my name to this specification.

' CARL OTTO. 

